/*******************************************************************************
 * Copyright (c) 2007, Geophysical Center RAS
 * Sergey Berezin, Dmitry Voitsekhovskiy
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms,
 * with or without modification, are permitted provided
 * that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * - Neither the name of the Geophysical Center RAS nor the names
 * of its contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ******************************************************************************/
﻿using System;
using System.Collections.Generic;
using System.Text;
using System.Collections;

namespace VisualEsse.DataEngine
{
    public class PaletteHash
    {
        protected Dictionary<string, PaletteDescription> hash;

        public PaletteHash()
        {
            hash = new Dictionary<string, PaletteDescription>();
        }

        public void Add(Type providerType, Type algorithmType, EsseParameterDescription parameter, PaletteDescription palette)
        {
            string hashString = GetHashString(providerType, algorithmType, parameter);
            hash.Add(hashString, palette);
        }

        public bool Contains(Type providerType, Type algorithmType, EsseParameterDescription parameter)
        {
            string hashString = GetHashString(providerType, algorithmType, parameter);
            return hash.ContainsKey(hashString);
        }

        public PaletteDescription this[Type providerType, Type algorithmType, EsseParameterDescription parameter]
        {
            get
            {
                string hashString = GetHashString(providerType, algorithmType, parameter);
                return hash[hashString];
            }
            set
            {
                string hashString = GetHashString(providerType, algorithmType, parameter);
                hash[hashString] = value;
            }
        }

        public bool Remove(Type providerType, Type algorithmType, EsseParameterDescription parameter)
        {
            string hashString = GetHashString(providerType, algorithmType, parameter);
            return hash.Remove(hashString);
        }

        public void Clear()
        {
            hash.Clear();            
        }

        protected string GetHashString(Type providerType, Type algorithmType, EsseParameterDescription parameter)
        {
            string hashString = String.Format(
               "\"{0}\",\"{1}\",\"{2}\"",
               providerType, algorithmType, parameter);
            return hashString;
        }
    }
}
